Models independent of each other in CAE are in contact or very close to each other
A contact condition is automatically assigned in the CAE setup (in ANSYS).
By setting this contact condition, even if one model moves or is subjected to a load
The model will not bite into the other model even if one of them moves or is loaded.
The main contact condition is generally 'bond contact', but other settings such as 'no separation' and 'rough' are also available.
Here is a comparison of how each of these behaves
What differences appear at the boundary surfaces of Ⓐ and Ⓑ given the contact conditions when forced displacements are applied to the top surface of model Ⓐ?
There were significant differences in the stresses occurring at the boundaries depending on the contact conditions.
In 'bonded contact', the stresses generated are high because the forces are applied to each other in unison.
In the 'no separation' condition, the stresses are low because of the mutual sliding behaviour.
In the 'rough' condition, the stress generated is lower than in bond contact because they are more moderately attached to each other than in bond contact.
Thus, the stress generated differs depending on the setting of the contact conditions alone.
Bond contact is the most common setting, but it may be interesting to review the contact conditions according to the conditions.
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